Baker&#39;s oven.



-No. 637,803. Patented Nov. 28, I899.

P. W. KLEIN.

BAKER'S UVEN.

(Application filed Feb. 25, 1899.) (Ho Model.) I

. ag i a 0'- 4k L; .3. I /T'/-1 g g 2 ii 7 4 V z //////Z/ I I 7:; 76,6 @gg g 2 ATTORNEY UNITED STATES PATENT OFFICE.

PETER WM. KLEIN, OFNEW ORLEANS, LOUISIANA.

BAKERS OVEN.

SPECIFICATION forming part of Letters Patent N 0. 637,803, dated November 28, 1899.

Application filed February 25, 1899. Serial No. 706,849. (No model.)

To all whom it may concern:

Be it known that 1, PETER WM. KLEIN, a citizen of the United States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented a new and useful Improvement in Bakers Ovens, of which the following is a specification.

My invention relates to bakers and confectioners ovens; and the object thereof is to construct an oven which may be fired continuously while baking.

Referring to the drawings, Figure 1 is a horizontal section on the line G, Fig. 4. Fig. 2 is a horizontal section on the line E, Fig. 4:. Fig. 3 is a horizontal section on the line F, Fig. 4.. Fig. 4 is a vertical section on the line A, Fig. 1. Fig. 5 is a vertical section on the line 0, Figs. 3 and 4. Fig. 6 is a vertical section on the line B, Fig. 3. Fig. 7 is a vertical section on the line D, Fig. 3. Fig. 8 is a front elevation of the oven.

The oven is constructed, preferably, of a square form inclosed by the brick walls a b c (1, Figs. 1 to 7. The furnace w, Figs. 3 and 6, is first fired, whence the hot gases pass through the opening m into the passage 8 thence around the end of partition 9 into passage 25, around the end of partition hinto passage to and around the end of partition 70 into passage '0 from whence the vertical flue 2' leads into the passage r, Fig. 1, thence around the end of partition 7e into the passage u, thence around the end of partition 72. into the passage 15, and around the end of partition 9 into passage .9, finally passing through flue r into the stack r and out into the air. When it is desired to use some of the hot gases over again before passing into the stack W, the same is partly closed by the damper 1', while the damper .2 is drawn out, so as to open the flue 2, when the gases instead of escaping out of the stack pass from the flue r downward into the chamber 19, thence upward through flue .2 into the chamber 19 and into the upper passages s t u", and t as first described. The floors l, m, n, and 0 are constructed, preferably, of tile, so as to permit of the heat passing readily to the bakingchamber m, which is provided with an entrance at and a sight or peep hole as, as well as a thermometer m A flue x Fig. 3, connects the bakingchamber a; with the stack r and by drawing the damper m toward the outside of the wall the excess of hot air finds its way through the damper-slot into the stack. Suitable doors are provided at the oven and furnace entrances.

Having described my invention, what I claim, and desire to secure by Letters Patent, is as follows:

' In a bake-oven the combination of four external walls forming a rectangle; a top and a bottom floor across said walls; two additional floors across said walls intermediate between said top and bottom floors; an inner partitionwall parallel and in proximity to one of the external walls; said partition-wall extending from ground to top floor, the space between partition-wall and nearest parallel external wall being divided by said top floor, said bottom floor and said two intermediate floors into a lower horizontal passage, an upper hori-' zontal passage, and an intermediate passage and furnace, a suitable grate being placed in furnace; a vertical flue in external wall connecting said upper and lower passages, a gate being provided in said vertical flue; baiflewalls between top and upper intermediate floors staggered across the space between partition-wall and farthest parallel external wall forming an upper sinuous passage; an opening being provided in floor above intermediate flue to conduct heated gases from furnace to said sinuous passage; a vertical flue passing through upper and lower intermediate floors leading from one end of upper sinuous passage to one end of lower sinuous passage formed by baffle-walls staggered across the space between partition-wall and farthest parallel external wall and reaching from bottom floor to lower intermediate floor, other end of said sinuous passage connecting on the same plane with a horizontal flue in partitionwall, said flue having connection by a Vertical flue in partition-wall with said lower'horizontal passage; said horizontal flue emptying into a vertical smoke flue and stack in one of the external walls, a suitable damper being provided in said smoke-flue; the space between upper and lower intermediate floors forming a baking-chamber; suitable openings in any of the external walls giving access to baking-chamber, said baking-chamber being continuously heated by hot gases from furnace passing through the upper andlower sinuous passages; substantially as described.

PETER WM. KLEIN. Witnesses:

J. M. CROWLEY, E. H. RIEKEN. 

